Add 80/20 and 70/56
1st number: 4 0/20, 2nd number: 1 14/56
80/20 + 70/56 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
80/20 = 80 × 14/20 × 14 = 1120/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
70/56 = 70 × 5/56 × 5 = 350/280 - Add the two like fractions:
1120/280 + 350/280 = 1120 + 350/280 = 1470/280 - 1470/280 simplified gives 21/4
- So, 80/20 + 70/56 = 21/4
In mixed form: 51/4
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